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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
*
*/
#include <asm/io.h>
#include <asm/u-boot.h>
#include <asm/utils.h>
#include <common.h>
#include <debug_uart.h>
#include <image.h>
#include <spl.h>
#include <asm/arch/clock_manager.h>
#include <asm/arch/firewall_s10.h>
#include <asm/arch/mailbox_s10.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/sdram_s10.h>
#include <asm/arch/system_manager.h>
#include <watchdog.h>
DECLARE_GLOBAL_DATA_PTR;
static struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
u32 spl_boot_device(void)
{
/* TODO: Get from SDM or handoff */
return BOOT_DEVICE_MMC1;
}
#ifdef CONFIG_SPL_MMC_SUPPORT
u32 spl_boot_mode(const u32 boot_device)
{
#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
return MMCSD_MODE_FS;
#else
return MMCSD_MODE_RAW;
#endif
}
#endif
void spl_disable_firewall_l4_per(void)
{
const struct socfpga_firwall_l4_per *firwall_l4_per_base =
(struct socfpga_firwall_l4_per *)SOCFPGA_FIREWALL_L4_PER;
u32 i;
const u32 *addr[] = {
&firwall_l4_per_base->nand,
&firwall_l4_per_base->nand_data,
&firwall_l4_per_base->usb0,
&firwall_l4_per_base->usb1,
&firwall_l4_per_base->spim0,
&firwall_l4_per_base->spim1,
&firwall_l4_per_base->emac0,
&firwall_l4_per_base->emac1,
&firwall_l4_per_base->emac2,
&firwall_l4_per_base->sdmmc,
&firwall_l4_per_base->gpio0,
&firwall_l4_per_base->gpio1,
&firwall_l4_per_base->i2c0,
&firwall_l4_per_base->i2c1,
&firwall_l4_per_base->i2c2,
&firwall_l4_per_base->i2c3,
&firwall_l4_per_base->i2c4,
&firwall_l4_per_base->timer0,
&firwall_l4_per_base->timer1,
&firwall_l4_per_base->uart0,
&firwall_l4_per_base->uart1
};
/*
* The following lines of code will enable non-secure access
* to nand, usb, spi, emac, sdmmc, gpio, i2c, timers and uart. This
* is needed as most OS run in non-secure mode. Thus we need to
* enable non-secure access to these peripherals in order for the
* OS to use these peripherals.
*/
for (i = 0; i < ARRAY_SIZE(addr); i++)
writel(FIREWALL_L4_DISABLE_ALL, addr[i]);
}
void spl_disable_firewall_l4_sys(void)
{
const struct socfpga_firwall_l4_sys *firwall_l4_sys_base =
(struct socfpga_firwall_l4_sys *)SOCFPGA_FIREWALL_L4_SYS;
u32 i;
const u32 *addr[] = {
&firwall_l4_sys_base->dma_ecc,
&firwall_l4_sys_base->emac0rx_ecc,
&firwall_l4_sys_base->emac0tx_ecc,
&firwall_l4_sys_base->emac1rx_ecc,
&firwall_l4_sys_base->emac1tx_ecc,
&firwall_l4_sys_base->emac2rx_ecc,
&firwall_l4_sys_base->emac2tx_ecc,
&firwall_l4_sys_base->nand_ecc,
&firwall_l4_sys_base->nand_read_ecc,
&firwall_l4_sys_base->nand_write_ecc,
&firwall_l4_sys_base->ocram_ecc,
&firwall_l4_sys_base->sdmmc_ecc,
&firwall_l4_sys_base->usb0_ecc,
&firwall_l4_sys_base->usb1_ecc,
&firwall_l4_sys_base->clock_manager,
&firwall_l4_sys_base->io_manager,
&firwall_l4_sys_base->reset_manager,
&firwall_l4_sys_base->system_manager,
&firwall_l4_sys_base->watchdog0,
&firwall_l4_sys_base->watchdog1,
&firwall_l4_sys_base->watchdog2,
&firwall_l4_sys_base->watchdog3
};
for (i = 0; i < ARRAY_SIZE(addr); i++)
writel(FIREWALL_L4_DISABLE_ALL, addr[i]);
}
void board_init_f(ulong dummy)
{
const struct cm_config *cm_default_cfg = cm_get_default_config();
int ret;
#ifdef CONFIG_HW_WATCHDOG
/* Ensure watchdog is paused when debugging is happening */
writel(SYSMGR_WDDBG_PAUSE_ALL_CPU, &sysmgr_regs->wddbg);
/* Enable watchdog before initializing the HW */
socfpga_per_reset(SOCFPGA_RESET(L4WD0), 1);
socfpga_per_reset(SOCFPGA_RESET(L4WD0), 0);
hw_watchdog_init();
#endif
/* ensure all processors are not released prior Linux boot */
writeq(0, CPU_RELEASE_ADDR);
socfpga_per_reset(SOCFPGA_RESET(OSC1TIMER0), 0);
timer_init();
sysmgr_pinmux_init();
/* configuring the HPS clocks */
cm_basic_init(cm_default_cfg);
#ifdef CONFIG_DEBUG_UART
socfpga_per_reset(SOCFPGA_RESET(UART0), 0);
debug_uart_init();
#endif
ret = spl_early_init();
if (ret) {
debug("spl_early_init() failed: %d\n", ret);
hang();
}
preloader_console_init();
cm_print_clock_quick_summary();
/* enable non-secure interface to DMA330 DMA and peripherals */
writel(SYSMGR_DMA_IRQ_NS | SYSMGR_DMA_MGR_NS, &sysmgr_regs->dma);
writel(SYSMGR_DMAPERIPH_ALL_NS, &sysmgr_regs->dma_periph);
spl_disable_firewall_l4_per();
spl_disable_firewall_l4_sys();
/* disable lwsocf2fpga and soc2fpga bridge security */
writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_SOC2FPGA);
writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_LWSOC2FPGA);
/* disable SMMU security */
writel(FIREWALL_L4_DISABLE_ALL, SOCFPGA_FIREWALL_TCU);
/* disable ocram security at CCU for non secure access */
clrbits_le32(CCU_REG_ADDR(CCU_CPU0_MPRT_ADMASK_MEM_RAM0),
CCU_ADMASK_P_MASK | CCU_ADMASK_NS_MASK);
clrbits_le32(CCU_REG_ADDR(CCU_IOM_MPRT_ADMASK_MEM_RAM0),
CCU_ADMASK_P_MASK | CCU_ADMASK_NS_MASK);
debug("DDR: Initializing Hard Memory Controller\n");
if (sdram_mmr_init_full(0)) {
puts("DDR: Initialization failed.\n");
hang();
}
mbox_init();
#ifdef CONFIG_CADENCE_QSPI
mbox_qspi_open();
#endif
}
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